52 
EAST AVING. 
perfect state of preservation, found in the brick earth at Ilford 
in Essex. Then follow skeletons of the great extinct Irish Deer 
(Cermis giganteus), male and female, the former distinguished 
by its magnificent palmated antlers, resembling those of a 
fallow deer on a large scale. 
Here has lately been placed, through the liberality of 
Professor 0. C. Marsh, a model of a perfect skeleton of the 
Uintatherium or Dinoceras mirabile, one of the most remarkable 
of the many wonderful forms of animal life lately discovered in 
the Tertiary beds of the western portion of the United States of 
America. This animal combines in some respects the characters 
of a rhinoceros with those of an elephant, and has others 
altogether special to itself. The group to which it belonged 
became extinct in the Miocene period, without leaving any 
successors. 
Beyond this is a skeleton of a very rare and interesting 
animal, the Northern Manatee or Sea Cow {Rliytina gig as), the 
last known resort of which was Behring's Island in the North 
Pacific, where it was completely exterminated towards the close 
of the last century. In the same case is placed the skeleton of 
a smaller allied form, the Halitherium, from the Miocene of 
South Germany. These, with their existing representatives, the 
Manatee and Dugong (see Osteological Gallery, West Wing, 
Second Floor, p. 45), belong to the order Sirenia, aquatic mammals 
of fish-like form, presenting considerable external resemblance 
to Cdacea (the Whales and Dolphins), although differing from 
them in many essential points of structure and habit. 
PosBilremair-s The wall-cases on the south side (right on entering) con- 
ofMan. ^^^j^ remains of Man found under such circumstances as may 
justify the appellation of " fossil," in caves or in Pleistocene de- 
posits, associated with the bones of animals either completely 
or locally extinct. Then follow in systematic order the bones 
and teeth of the other Primates, the Carnivora, Ungulata and 
Sirenia. 
The greater part of the north side of the gallery is devoted to the 
exhibition of a magnificent collection of the remains of Probos- 
cidea (Dinotheria, Mastodons and Elephants), including the fine 
series from the sub-Himalayan formations of India collected by 
Cautley and Falconer. 
